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WoL Implementation - Updated?


Userlevel 2
Hi All,

I have found some information on implementing WoL (Wake on Lan) in EXOS, but its a few years out of date.

Is it still current?

How comes this isn't built into EXOS or is it that the specific routing protocols don't allow for the functionality?

Any feedback would be grateful.

3 replies

Userlevel 5
Hi Ian,

There are a couple of options. It depends on the type of WoL packets that you are using

Create a policy file to be applied as a UDP profile:
https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-Allow-Wake-on-LAN-Magic-Packets-to-...

Directed broadcast in particular VLAN
https://gtacknowledge.extremenetworks.com/articles/Q_A/What-is-the-command-to-enable-directed-broadc...

Move Ether-Wake from one VLAN to another
https://gtacknowledge.extremenetworks.com/articles/Solution/move-Ether-Wake-from-one-VLAN-to-another
Userlevel 3
I could be wrong but WOL does not have much to do with the Switching infrastructure. is a directed broadcast packet. If I recall correctly you just need to support directed broadcast feature if sending this from a remote lan. in some vendors this is turned off by default ( to prevent a remote system from sending broadcast packets to your LAN ).
Userlevel 2
so in terms of the UDP profile way of doing things. If i have 24 vlans I can potentially have 3 UDP profiles specifying 8 vlans in each. I then apply the 3 profiles to the VLAN that hosts the SCCM server that is delivering the WoL packets?

Have I interpreted this correctly?

I dont need to apply the profiles to the other VLANs?
I thought you could only apply one UDP profile to a VLAN?
Userlevel 3
Hi Ian,

Thank you for the reply. Your understanding is right.

If your requirment is one UDP packet needs to reach to 24 vlans I think it is not possible.
The solution for this would be having multiple WOL source from different vlans, at least 3 in our case.

Please correct me if I am wrong..

Create a policy file to be applied as a UDP profile. The format for this policy is below​.

entry one {
if match all {
destination-port 9;
} then {
vlan ;
}
}

entry two {
if match all {
destination-port 9;
} then {
vlan ;
}
}

Apply this policy to the VLAN that the WoL server is in, with the command configure vlan udp-profile

-We can have 1 UDP broadcast packet to 8 destination (vlan)
-It is not recommended to have more than 8 entries in a UDP profile.

Regards,
Karthikeyan

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